JPS5678438A - Device for bending glass bulb - Google Patents

Device for bending glass bulb

Info

Publication number
JPS5678438A
JPS5678438A JP15458879A JP15458879A JPS5678438A JP S5678438 A JPS5678438 A JP S5678438A JP 15458879 A JP15458879 A JP 15458879A JP 15458879 A JP15458879 A JP 15458879A JP S5678438 A JPS5678438 A JP S5678438A
Authority
JP
Japan
Prior art keywords
speed
heated
take
glass bulb
bent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15458879A
Other languages
Japanese (ja)
Inventor
Shizuyasu Yanagisawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15458879A priority Critical patent/JPS5678438A/en
Publication of JPS5678438A publication Critical patent/JPS5678438A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/06—Re-forming tubes or rods by bending
    • C03B23/065—Re-forming tubes or rods by bending in only one plane, e.g. for making circular neon tubes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE: The speeds of the feed mechanism and take up mechanism are set in the order of the center speed at the heated and softened part of the glass bulb, the speed of the inside surface at the part to be bent and the feed speed, thus controlling the elongation and compression at each part and ensuring the steady and accurate bending of a glass bulb.
CONSTITUTION: When the take up speed at the center of the heated and softened part in bulb A, the take up speed at the inside surface of the heated and softened part to be bent and the feed speed are represented by V1, V2 and V3 respectively, the take up mechanism 17 and feed mechanism are controlled in operation speed so that the three kinds of speed keeps the following relationship: V1>V2>V3. The difference in operation speed between both mechanism 17 and 2 can positively gives elongation or compression to the heated and softened part and undesirable deformation at the part to be bent is hardly caused, when the above speed relationship is kept, resulting in ensuring accurate and steady bending.
COPYRIGHT: (C)1981,JPO&Japio
JP15458879A 1979-11-29 1979-11-29 Device for bending glass bulb Pending JPS5678438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15458879A JPS5678438A (en) 1979-11-29 1979-11-29 Device for bending glass bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15458879A JPS5678438A (en) 1979-11-29 1979-11-29 Device for bending glass bulb

Publications (1)

Publication Number Publication Date
JPS5678438A true JPS5678438A (en) 1981-06-27

Family

ID=15587468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15458879A Pending JPS5678438A (en) 1979-11-29 1979-11-29 Device for bending glass bulb

Country Status (1)

Country Link
JP (1) JPS5678438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119933A (en) * 1989-12-22 1992-04-21 Carl Zeiss:Fa Method and apparatus for regulating outside diameter of glass pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138310A (en) * 1974-09-17 1976-03-31 Jeimusu Ee Joburingu Ando Co L GARASUMAGE SOCHI
JPS5462213A (en) * 1977-10-27 1979-05-19 Tokyo Shibaura Electric Co Method of bending glass tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138310A (en) * 1974-09-17 1976-03-31 Jeimusu Ee Joburingu Ando Co L GARASUMAGE SOCHI
JPS5462213A (en) * 1977-10-27 1979-05-19 Tokyo Shibaura Electric Co Method of bending glass tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119933A (en) * 1989-12-22 1992-04-21 Carl Zeiss:Fa Method and apparatus for regulating outside diameter of glass pipe

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